title: Desorption of cluster ions from solid Ne by low-energy ion impact.
abstract: We investigated Ne(+) ions and Ne(n)(+) (n = 2-20) cluster ions desorbed from the surface of solid Ne by 1.0 keV Ar(+) ion impact. Kinetic energy analysis shows a considerably narrower energy distribution for Ne(n)(+) (n ≥ 3) ions than for Ne(n)(+) (n = 1, 2) ions. The dependence of ion yields on Ne film thickness indicates that cluster ions (n ≥ 3) are desorbed only from relatively thick films. We conclude that desorbed ions grow into large cluster ions during the outflow of deep bulk atoms to the vacuum.
authors.affiliation: Research Center for Measurement in Advanced Science (RCMAS), Rikkyo University, Toshima-ku, Tokyo 171-8501, Japan.
authors.forename: T
authors.initials: T
authors.lastname: Tachibana
authors.forename: K
authors.initials: K
authors.lastname: Fukai
authors.forename: T
authors.initials: T
authors.lastname: Koizumi
authors.forename: T
authors.initials: T
authors.lastname: Hirayama
mesh_terms: D000327:Adsorption; D003198:Computer Simulation; D004735:Energy Transfer; D007477:Ions; D008956:Models, Chemical; D009356:Neon / Q000737:chemistry* / Q000528:radiation effects*
chemical_list: D007477:Ions; D009356:Neon